What is every Big Ten Conference team's record against the over/under line as a road underdog since the 2003 season?

Definitions
Team Over Record Over % Under % Total +/-
Indiana 51-30-1 63.0% 37.0% +5.1
Wisconsin 15-11-0 57.7% 42.3% +2.8
Nebraska 28-23-0 54.9% 45.1% +4.1
Minnesota 34-34-2 50.0% 50.0% -0.8
Michigan 17-18-0 48.6% 51.4% +0.6
Maryland 38-41-1 48.1% 51.9% +0.3
Illinois 37-40-2 48.1% 52.0% +1.2
Michigan St 26-29-0 47.3% 52.7% +1.1
Ohio St 6-7-0 46.2% 53.9% +0.3
Purdue 31-38-2 44.9% 55.1% -1.5
Penn St 17-21-1 44.7% 55.3% -2.3
Rutgers 35-46-0 43.2% 56.8% +1.5
Northwestern 30-42-2 41.7% 58.3% +0.2
Iowa 19-34-0 35.9% 64.2% -4.9